US 12,262,418 B2
Uplink timing advance estimation from sidelink
Hua Wang, Basking Ridge, NJ (US); Sony Akkarakaran, Poway, CA (US); Tao Luo, San Diego, CA (US); Junyi Li, Fairless Hills, PA (US); and Jung Ho Ryu, Fort Lee, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jan. 4, 2022, as Appl. No. 17/568,633.
Prior Publication US 2023/0217497 A1, Jul. 6, 2023
Int. Cl. H04W 74/08 (2024.01); H04W 74/00 (2009.01); H04W 74/0833 (2024.01); H04W 56/00 (2009.01); H04W 92/18 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 74/004 (2013.01); H04W 74/006 (2013.01); H04W 56/001 (2013.01); H04W 92/18 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method for wireless communication at a first user equipment (UE), comprising:
receiving, via a sidelink connection between the first UE and a second UE, an indication of a first uplink timing advance from the second UE, wherein the first uplink timing advance is for communications from the second UE to a base station;
estimating, based at least in part on the first uplink timing advance received from the second UE, a second uplink timing advance for transmission of a random access message from the first UE to the base station; and
transmitting, to the base station, the random access message using the second uplink timing advance.